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Patent Searching and Data


Title:
REFRIGERANT CYCLE SYSTEM
Document Type and Number:
WIPO Patent Application WO/2020/250986
Kind Code:
A1
Abstract:
The present invention sets a refrigerant to be in a superheated state without degrading the performance of a cascade heat exchanger. A refrigerant cycle system (100, 200) is provided with a first refrigerant circuit (1, 201), a second refrigerant circuit (2, 202), and a first cascade heat exchanger (21, 221). The first cascade heat exchanger (21, 221) causes heat exchange between a first refrigerant flowing in the first refrigerant circuit (1, 201) and a second refrigerant flowing in the second refrigerant circuit (2, 202). The refrigerant cycle system (100, 200) has switching mechanisms (13, 25, 213, 225). The switching mechanisms (13, 25, 213, 225) each switch at least one of refrigerant flow paths of the first refrigerant circuit (1, 201) and the second refrigerant circuit (2, 202). The first cascade heat exchanger (21, 221) has a first main heat exchange part (21a, 221a) and a first subsidiary heat exchange part (21b, 221b). The first subsidiary heat exchange part (21b, 221b) is for causing the first refrigerant having passed through the first main heat exchange part (21a, 221a) to be in a superheated state.

Inventors:
KUMAKURA EIJI
YAMADA TAKURO
YOSHIMI ATSUSHI
IWATA IKUHIRO
MINAMIDA TOMOATSU
Application Number:
PCT/JP2020/023068
Publication Date:
December 17, 2020
Filing Date:
June 11, 2020
Export Citation:
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Assignee:
DAIKIN IND LTD (JP)
International Classes:
F25B5/04; F25B1/00; F25B7/00; F25B13/00
Domestic Patent References:
WO2018235832A12018-12-27
Foreign References:
JP2013130357A2013-07-04
JPH07234027A1995-09-05
JP2013148330A2013-08-01
JPH07243711A1995-09-19
JPH03271659A1991-12-03
JP2017161182A2017-09-14
Attorney, Agent or Firm:
SHINJYU GLOBAL IP (JP)
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